CVE-2026-93204
CVE CVE-2026-93204EUVD EUVD-2026-82312Published 2026-09-17T16:12:24.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: atomically update mac addresses When a MAC address is updated in batadv_dat_entry_add(), it is done using a simple copy function. A parallel reader might only see parts of this update. In worst case, the reader is transporting the half updated MAC address over the network or is creating an ARP response using it - poisoning the ARP cache. atomic64_t can be used to store the 48 bit of a mac address. A reader will then either see the old mac address or the new one - never a mixture of both.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 2f1dfbe185075a50dc8f0490a136377af53a1c62 <259db2c04586d40b82c5c3002b1e28b0698a0bb7; patch: 7.2.6; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <e6de568d3eda3e3c01c868fabd7a9535d5ee4a73; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <159360a0de831845c4500b4f8638decdcd624040; patch: 5.15.221; patch: 6.6.157; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <a5e4d6cb4f6848b8906c1c493f99a8ccc0638515; patch: 6.1.188; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <f68038c77a2f38c09c7e2e4f7fa1f4e246fdf2c9; 3.8; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <1674855a5b6eacfe35f4db3095d7055c25467274; patch: 0; patch: 6.18.52; 2f1dfbe185075a50dc8f0490a136377af53a1c62 <66238e2a74eca5dabf85b0cd2c3c944e474dc2fd; patch: 6.12.110; patch: 7.3-rc1
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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